Data di Pubblicazione:
2010
Abstract:
Emission Mössbauer spectroscopy on 57Fe fed by 57Mn ions implanted in
the metal oxides ZnO, MgO and Al2O3 has been performed. The implanted ions
occupy different lattice sites and charge states. A magnetic part of the spectra in
each oxide can be assigned to Fe3+ ions in a paramagnetic state with unusually long
relaxation time observable to temperatures up to several hundreds Kelvin. Earlier
expectations that the magnetic spectra could correspond to an ordered magnetic
state could not be confirmed. A clear decision for paramagnetism and against an
ordered magnetic state was achieved by applying a strong magnetic field of 0.6 Tesla.
the metal oxides ZnO, MgO and Al2O3 has been performed. The implanted ions
occupy different lattice sites and charge states. A magnetic part of the spectra in
each oxide can be assigned to Fe3+ ions in a paramagnetic state with unusually long
relaxation time observable to temperatures up to several hundreds Kelvin. Earlier
expectations that the magnetic spectra could correspond to an ordered magnetic
state could not be confirmed. A clear decision for paramagnetism and against an
ordered magnetic state was achieved by applying a strong magnetic field of 0.6 Tesla.
Tipologia CRIS:
01.01 Articolo in rivista
Elenco autori:
Mantovan, Roberto
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